The correct answer is replication.
Replication is the procedure of duplicating or repeating a scientific study in order to enhance confidence in the rationality of the original findings. Replication plays an essential role for various reasons, like:
1. Determination of generalizability or the role of extraneous variables;
2. Assurance that outcomes are reliable and valid;
3. The inspiration for new research combining previous findings from the associated studies;
4. Applications of results to the real world circumstances.